For questions specifically about issues with battery charging or power supply.

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0
votes
0answers
61 views

Samsung Galaxy S2 phone keeps periodically detecting that charger is plugged in even when it's not

Samsung Galaxy S-2 phone keeps periodically detecting that the charger has been plugged in, apparently randomly I have noticed, however, that if I keep using the UI of the phone it doesn't happen, ...
1
vote
1answer
109 views

Usb Speaker with External Power supply? S ll

I'm using a 2x3W yenkee usb speaker with my phone through an usb otg cable and it's working fine, but when I turn the volume up the speaker turns off.I assume it's because of the high power ...
0
votes
1answer
430 views

Phone wont boot

Yesterday I got an Acer Liquid Z410. After installing some apps and checking out the phone, I charged my phone fully. Then I was trying to acces my phone again but it was off. So I tried to access it ...
4
votes
1answer
276 views

Does my Android phone uses battery or outlet power to operate while being charged?

I am curious about knowing which power source does my android uses up, while it is being charged while switched on.. I know i can test it by keeping it in charging and pulling the battery.. but i am ...
-1
votes
1answer
102 views

Fast charging a Samsung S4/S5 with an Apple charger

Does anyone know if it's possible to achieve fast charging (1300mA+) a S4/S5/S6 with an iPhone (5/6) charger? The data pins have a circuit, but I believe Apple uses a different voltage divider to ...
10
votes
5answers
4k views

How can I tell at what rate my battery is charging?

I've been told that different charging sources charge my phone at different rates, and have been told that some car chargers act at a normal USB rate instead of a rate closer to an AC outlet. When I ...
1
vote
1answer
126 views

Can I charge my android cell phone with another usb chager?

I have an Android phone and a Tablet. Sometimes, when traveling, I just want to take one of the chargers. Is this ok? Can I just use any usb based charger in any android phone or tablet or can there ...
1
vote
0answers
321 views

Phone's battery is draining unusually fast even when not in use

The hardware I'm using: OnePlus One, bought late december 2014 Stock Cyanogenmod, version 12.1 - YOG4PAS1N0 (= Android 5.1.1) no apps to improve battery life in any way Basically, the battery is ...
12
votes
6answers
5k views

Is it OK to swap batteries while phone is connected to wall charger?

It takes a few minutes to shut down and restart the phone, it would sometimes be handy to be able to swap batteries without shutting down (i.e. swap in a fully charged battery before going out). ...
0
votes
1answer
1k views

HTC Desire C screen on while charging

My new HTC Desire C screen does not turn off while charging. It is running ICS (Android version 4.0.3, HTC Sense version 4.0). I have went into Settings > Developer Tools > Stay Awake (OFF). It ...
5
votes
1answer
640 views

Don't charge to 100% when always-on wall-plugged-in

I want to use a Google Nexus phone for an always-on wall-plugged-in WiFi tethering access station. It occurred to me that if I just do it like this, then I'm risking ruining the battery within a ...
0
votes
1answer
61 views

Why does my phone charges fast when WiFi is on?

My phone is Lenovo A6000+ Original charger and Stock OS. Edit: it is a two months old phone with no other complaints.
-1
votes
1answer
283 views

I can't plug in my charger to my Samsung Galaxy tab 3 I think something is broken but i don't know how it happened

I really need help because I have no money to buy a new one. I was charging my tablet before a party and when I had to leave I unplugged it came home and it wouldn't plug in and I have tried all kinds ...
32
votes
3answers
54k views

Do I have to charge my phone before I use it the first time?

When I got my last phone, a SE k850i, I was recommended to charge it fully once before I even turned it on. Does this apply today as well, for my coming HTC Desire HD? Why was I recommended to do so ...
1
vote
1answer
56 views

2014 moto x battery life

I'm experiencing an issue with my 2014 Moto X's battery running Android 5.1 and I was wondering if someone have any suggestions or something ... for example, yesterday I had about 30% left of my ...
1
vote
0answers
418 views

How to care for a lithium-ion battery so that it will remain useful for as many years as possible [closed]

My question I own an Android smartphone with a lithium-ion rechargeable battery. I want the battery to remain at least somewhat useful as long as possible — even for five or ten years, if such ...
0
votes
0answers
47 views

Tablet report as charging with the charger unplugged

I'm having problems charging my Samsung Tab 2 device. It is reporting as charging after I unplug the cable, and when charging, it is drawing a small current from the charger. I've measured and it gets ...
0
votes
3answers
3k views

what could cause a sudden drop in battery life?

According to my battery graph the phone went from 85% to 0 in an instant. I wanted to add a screenshot, but I do not have enough reputation. The last time I checked it was nearly full, and 7 hours ...
0
votes
0answers
226 views

Charging rate in Zenfone 5 is 40-90mA while Moto G shows 480-500mA with same charger and USB cable. What's the issue with former?

I have a T00J Zenfone 5, and last Sunday its charger broke. As I tend to use it in lots of places, I guess the stress on the cord was a little more than it could handle. I plugged it in on USB, and ...
1
vote
1answer
321 views

Nexus 4 won't charge or boot (red light)

I have been reading a bunch of articles on ways to fix this "red light" issue. My issue seems a bit different from most articles as the red light does not show up when I plug in my charger. Articles I ...
19
votes
11answers
37k views

Galaxy Tab is not being charged through USB Cable

Currently i am using Samsung Galaxy Tab, model is GT-P1000, to test my application, so i usually attach it with PC through USB cable and it is attached for a whole day though it is showing low battery ...
-1
votes
2answers
48 views

what can be the problem behind if my android phone charges just 2-3% in 1 hour? [closed]

This happens with me so many times. I want my answer please tell me. IOt will be a great help for me. I believe in stack exchange !!
0
votes
0answers
117 views

HTC One M8 will not charge

My HTC One M8 was run over by a bus, literally a bus. I brought it for repair and the guys replaced the screen and it powered up fine. However, the battery would not charge. The phone repair guys ...
1
vote
2answers
1k views

Xperia SP looks like it's charging, but it doesn't charge

My phone is Xperia SP, it's on CM 12.1, unofficial build (because the official one is buggy due to bad kernel). It has been bought second-hand, so I'm not sure about its history (the phone was in a ...
0
votes
1answer
31 views

How to know which Dock Connector my Galaxy S2 has?

There are several revisions for Dock Connects/Charging Ports per model. I would like to know if there is a way to find which revision is installed on my phone without opening the device. If that's ...
0
votes
0answers
28 views

Android- Sony Z not charging

have a sony With two years. For an update to Android 5.0 I have a problem with charging my phone when it is switched off and the battery totally 0 % would normally loads, but when the phone is ...
0
votes
0answers
2k views

My Galaxy GRAND 2 won't charge?

I think the problem started when I plugged an unoriginal USB cable to my phone for charging. After that my phone started to go in dock mode without anything plugged in it. After 2 days this problem ...
0
votes
0answers
202 views

Samsung Galaxy Note 2 doesn't charge when connected to charger but shows USB connector notification

I'm using Samsung Galaxy Note 2. I rooted this phone and flashed a custom ROM. After three months I started facing an issue that whenever I connect my charger the device does not charge, and shows ...
1
vote
1answer
196 views

Why is the screen acting weird while charging?

I noticed that when I charge my phone with a cheap charger that I bought from Ebay, the screen acts strange: It suddenly can't position my taps correctly and It detects swipes as taps. After a ...
0
votes
1answer
38 views

Weird battery issues

There's this phone I got, it belonged to my girlfriend's mom, but she just gave it to me since it stopped working and I wanted it. The problem is it won't charge. I'll plug it in and the screen will ...
0
votes
1answer
37 views

Exclude possibility of damage of Android device while chargin with another charger [duplicate]

Is it true, that if I have one Android tablet with mini-usb from Philips, one Android device with mini-usb from Sony, then if I connect Philips charger to Sony charger, then it is possibility for a ...
0
votes
0answers
255 views

Battery connector pins showing strange voltages for a phone and a tablet

I have a Samsung GT-I9003 phone and a Samsung GT-P3100 tablet. Phone is rated 3.7V 1A, tablet is rated 5V 2A. Phone has an Input:100-240V 50-60Hz 150mA Output:5.0V 550mA charger, tablet has an ...
0
votes
0answers
3k views

Battery draining faster after recharging on Galaxy S4 Mini

I'm struggling with my Samsung Galaxy S4 Mini. Actually the battery is very good and since I don't use my phone a lot, it lasts pretty much 2 days when I let it die and full recharge it. The issue ...
0
votes
0answers
386 views

USB and charging port is not working after rooting

I have rooted my HTC Desire 620G with kingoroot. After rooting the phone is not getting charged while its switched on. The phone can be charged by switched it off. Also the phone can not be connected ...
3
votes
0answers
315 views

Use “Lock Screen” as Daydream option

maybe its too simple a question, but I need to figure out how I can just use my lock-screen as daydream option for an android lollipop device. What I want is to see the normal lock screen while ...
0
votes
0answers
365 views

usb OTG host mode and charging at same time with Moto G xt1033

I know specific android phones can have a usb slave device in otg host mode connected and be charged at the same time with this sort of cable: ...
1
vote
2answers
92 views

Is there a way to leave the phone plugged in, but schedule when to actually charge it?

Under my normal daily use, my phone would have around 50~40% battery power left before I go to sleep. I don't want to keep my phone plugged in to charge over night, but I do want it to be at 100% ...
0
votes
1answer
173 views

How to recalibrate the OS for an external battery?

I recently bought an external non-standard 7000 mAh battery for my Samsung Galaxy S3 but the phone doesn't seem to recognize it. Is it possible that the phone needs to be reconfigured or recalibrated ...
0
votes
0answers
58 views

Why won't my Samsung Galaxy S3 charge?

I have been using this phone for like almost three years and I didn't see anything like this but from past month my phone doesn't want to charge. I tried changing chargers because I thought it was ...
1
vote
0answers
157 views

How to charge a phone without it turning on?

I've got Sony Xperia Z2 (phone) and Sony Xperia Z1 (tablet). Every time I put one of them on charging (and pick up from charging for that matter), the device will turn on. I don't like it and I'd ...
0
votes
0answers
51 views

Battery charge 0% on Galaxy Nexus / Android 4.3.3

I have just connected a charger to my Samsung Galaxy Nexus i9250 phone with Android 4.3.3 and for the first few minutes it showed me (on lock screen) 0% battery charge. Aside of discussion, how bad ...
4
votes
2answers
1k views

Is possible to charge device and provide data transfer using a single USB port?

I have a tablet that only has one USB port that it used to recharge the battery (so no extra charger port), and I need to connect another device to it (ex: USB drive or printer) that only needs to ...
1
vote
0answers
71 views

Nexus 4 red light of death. Unable to fix it (tried two possible solutions)

Using a 3-year Nexus 4, I started yesterday to suffer the red light of death issue. Firtsly, I open the unit, disconected and conected the battery, following the directions of: ...
1
vote
0answers
214 views

Phone switches off while charging

My Samsung Galaxy Note 3 Neo sometimes turns off automatically while charging on original wall charger. And then no physical button works, I have to remove the battery and then have to restart it. ...
2
votes
3answers
2k views

My Nexus 4 says it's charging but it's actually discharging

I plug in my Nexus 4 to a charger cable plugged into a wall outlet each night, and each morning I disconnect it. But sometimes during the day when it's not plugged in, like today, it says "Charging - ...
5
votes
4answers
8k views

Nexus 7 says it's charging but it isn't

I have had a Nexus 7 since September and today something strange happened. I plugged it in, as usual, to recharge the battery. It charged up to 36% and now it still says it's charging but it never ...
0
votes
1answer
92 views

A Bad Charger Damaged My Asus TF300t Tablets

I bought a charger set off of Amazon.When i plugged it into my tablet it flashed and rebooted and the battery shows 0% and will not charge.Also when i hook up the USB charger the computer does not see ...
3
votes
3answers
5k views

How long device has been running since last charge?

In Android Lollipop, how do I see how long it has been since the last time I charged the battery? I mean I can get the approximate time by eye-balling the graph shown in Settings -> Battery. But, is ...
242
votes
6answers
63k views

Does constant charging harm my Android cellphone?

I usually disconnect my cellphone from the charger some time after it's fully charged because I'm afraid the battery could lose capacity over time if I don't. However, I believe modern electronics ...
1
vote
0answers
37 views

How do I test to see if a battery is good?

I have had such a nightmare with sprint. I'm not going into all the details but I ordered a battery for my htc 3d phone. I just want to get it up and running. I lost 10 days worth of texts and ...